I’ve been mostly-lurking for quite a while and I don’t remember this subject coming up before. If it has been done to death already, please be gentle…
A few months ago there was a thread about what the world would look like if the Wright brothers had not invented the airplane. It was quickly pointed out that the world would look pretty much the same, as several different groups of people were very close to achieving the same thing at roughly the same time. If the brothers had failed, manned flight would have been set back by a couple of years at the most.
Looking at many other inventions and discoveries thoughout history which appear revolutionary at first sight, I see the same thing. Newton and Leibniz each developed calculus independently, within a few years of each other. Darwin came up with natural selection by himself (the concepts of evolution and speciation already existed), but had to rush his work into print when he learned that Wallace had done pretty much the same thing on his own. James Watt is credited as the inventor of the steam engine, but in fact he only made a small, though significant, improvement – the development of the steam engine was a relatively smooth evolutionary path that can be traced back to Hero of Alexandria in 300BC.
According to Cecil, even the archetypal flash-of-inspiration style invention, the weel, was actually developed over thousands of years in a slow, gradual process.
Without wanting to deprecate the achievements of Newton, the Wright brothers or any other great inventor or scientist, the evidence seems to suggest that, once “the time is right” for a given development, it is going to happen one way or another. If inventor X had been hit by a bus on the eve of publishing his great discovery, inventor Y or Z would have come up with the same thing in less than a decade and history would have been pretty much the same.
The most obvious exception I can think of is Einstein’s theory of relativity. While I suspect that this, too, was partly a matter of “the time being ripe” following the work of Planck et al, I don’t know of anybody claiming to have been working on the same thing at the same time. Any other counter-examples?
This concept could be relevant in discussions of patent law. If it is true that most inventions are more or less inevitable once the necessary pre-conditions are in place, and that people independently coming up with the same thing is the norm rather than the exception, that would undermine the legitimacy of granting a monopoly on the invention to the person who happens to be the first to go public with it.
Comments?